Monster Hunter Frontier .pac

[SnowHaze]

First off i'd like to say I don't really know much about file decryption and QuickBMS(i know how to run scripts, i'm talking about the scripting language), but i am willing to spend time learning.

I've managed to obtain many textures from some .pac files using a tool simply called Extractor, i've got what seems to be most of the weapon, stage and armor textures, but i've only obtained a handful of Monster textures, checking these files with an hex editor revealed that the files that Extractor didn't manage to scan where different, starting with what seems to be a header, "ecd", from there on i am blank, as i stated before, i know nothing about these processes.

So i hope someone else will be willing to help me out on obtaining the monster's textures, here are 3 .pac files from the game, one that starts with "ecd" (em004.pac), another that was scanned and extracted by Extractor(em035.pac), and another one from the "hd" folder which should have textures for the same monster as 035.pac (em035-hd.pac) but also didn't have any results in Extractor.

https://www.dropbox.com/s/889ll9q3el4c0rd/FOFiles.zip?dl=0
(I had to leave in a hurry and forgot to add the link...)

[SnowHaze]

Sorry for the bump, but i'm still interested in extracting these files.

FileCutter script output of another file with ecd at the start: https://www.dropbox.com/s/pbpalq7467qjvsd/em050.zip?dl=1

Thanks for your time in advance.

[SnowHaze]

And i just realized i posted this in the wrong section, hopefully staff will move it to graphics.

[moonpaladin]

Hello SnowHaze! where did you find the .pac for the weapons? ! D: